METHODS AND SYSTEMS RELATED TO REMOTE POWER LOSS DETECTION

摘要

Remote power loss detection. At least some of the example embodiments are methods including: tracking location of an asset by an onboard device mechanically coupled to the asset, the onboard device electrically coupled to a source of power of the asset, and the onboard device receiving power from the asset; charging a supercapacitor coupled to the onboard device; and then detecting a complete loss of power provided to the onboard device, and the detecting by the onboard device; and after the complete loss of power sending a message by wireless transmission, the sending based on power derived from the supercapacitor, and the message including an indication of a last known voltage provide by the asset prior to the complete loss of power, and the sending by the onboard device after the complete loss of power.

主权项

1. A method comprising:
charging a supercapacitor of an onboard device coupled to an asset, the charging from a source of power of the asset; and then detecting tampering with the onboard device by a complete loss of power from the source of power, the detecting by the onboard device; and after the complete loss of power utilizing power from the supercapacitor to send a message by wireless transmission, the message including an indication of a last known voltage provided by the source of power prior to the complete loss of power.